1.Short-Term Efficacy of Enzyme Replacement Therapy in Korean Patients with Fabry Disease.
Jin Ho CHOI ; Young Mi CHO ; Kwang Sun SUH ; Hye Ran YOON ; Gu Hwan KIM ; Sung Su KIM ; Jung Min KO ; Joo Hoon LEE ; Young Seo PARK ; Han Wook YOO
Journal of Korean Medical Science 2008;23(2):243-250
Fabrazyme has been widely used for treatment of Fabry disease since its approval by the U.S. Food and Drug Administration in 2003. This study was undertaken to assess the short-term efficacy and safety of enzyme replacement therapy (ERT) for Fabry disease in Korea. Eight male patients and three female symptomatic carriers aged 13 to 48 yr were included. Fabrazyme was administered by intravenous infusion at a dose of 1 mg/kg every 2 weeks. Plasma and urine globotriaosylceramide (GL-3) levels, serum creatinine, creatinine clearance, and 24-hr urine protein levels were measured every 3 months. Kidney biopsies, ophthalmologic exams, and pure tone audiometry were performed before and 1 yr after ERT. Kidney function, including serum creatinine, creatinine clearance, and the 24-hr urine protein level, remained stable during ERT. Plasma and urine GL-3 levels were reduced within 3 to 6 months of ERT initiation. Microvascular endothelial deposits of GL-3 were decreased from renal biopsy specimens after 1 yr of treatment. The severity of sensorineural hearing loss and tinnitus did not improve after ERT. ERT is safe and effective in stabilizing renal function and clearing microvascular endothelial GL-3 from kidney biopsy specimen in Korean patients with Fabry disease.
Adolescent
;
Adult
;
Biopsy
;
Creatinine/blood/urine
;
Enzymes/*therapeutic use
;
Fabry Disease/blood/ethnology/*therapy
;
Female
;
*Heterozygote
;
Humans
;
Korea
;
Male
;
Microcirculation
;
Middle Aged
;
Trihexosylceramides/blood
;
alpha-Galactosidase/*therapeutic use
2.Effects of dujieqing oral liquid on the promoter methylation of the MGMT gene in middle-and-late stage tumor patients receiving chemotherapy.
Zhen RONG ; Yue XU ; Chun-mei MO
Chinese Journal of Integrated Traditional and Western Medicine 2012;32(12):1611-1615
OBJECTIVETo observe the effects of Dujieqing Oral Liquid (DJQ) on the promoter methylation of the O6-methylguanine-DNA methyltransferase (MGMT) gene in the plasma DNA samples from middle-and-late stage tumor patients receiving chemotherapy.
METHODSRecruited 60 patients were randomly assigned to the treatment group (treated by conventional chemotherapy combined DJQ, 20 mL each time, three times daily) and the control group (treated by chemotherapy alone), 30 in each group. The therapeutic course was 8 weeks. The promoter methylation of the MGMT gene in the plasma DNA samples form middle-and-late stage tumor patients receiving chemotherapy was detected before and after treatment using nested methylation-specific polymerase chain reaction (MSP). Meanwhile, the peripheral hemogram was detected. The clinical efficacy and toxic/adverse reactions were assessed using Karnofsky performance scale (KPS).
RESULTSResults of the promoter methylation of MGMT genes showed that methylation rate was 20.00% in the treatment group and 46.67% in the control group (P<0.05). Compared with before treatment, the KPS was significantly improved in the treatment group after treatment, while it significantly decreased in the control group after treatment (both P<0.05). There was statistical difference in the KPS between the two groups after treatment (P<0.01). The toxic/adverse reactions were milder in the treatment group than in the control group (P<0.01).
CONCLUSIONSDJQ showed efficiency synergism and toxicity reducing effects, but with no effect on the hematopoietic function of the bone marrow. MGMT gene was indicated as DJQ's target point for efficiency synergism and toxicity reducing. The efficiency synergism and toxicity reducing effects were achieved by regulating the activities of MGMT gene.
Adult ; Aged ; DNA Methylation ; DNA Modification Methylases ; genetics ; DNA Repair Enzymes ; genetics ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Female ; Humans ; Male ; Middle Aged ; Neoplasm Staging ; Neoplasms ; genetics ; metabolism ; pathology ; Promoter Regions, Genetic ; Tumor Suppressor Proteins ; genetics
3.Ubc9 expression predicts chemoresistance in breast cancer.
Shi-Feng CHEN ; Chang GONG ; Ming LUO ; He-Rui YAO ; Yun-Jie ZENG ; Feng-Xi SU
Chinese Journal of Cancer 2011;30(9):638-644
Ubiquitin-conjugating enzyme 9 (Ubc9), the sole conjugating enzyme for sumoylation, regulates protein function and plays an important role in tumorigenesis. Whether Ubc9 is involved in the chemoresistance of breast cancer remains unknown. In this study, we aimed to evaluate the contribution of Ubc9 in the chemoresistance of breast cancer. Immunohistochemistry (IHC) was used to examine the expression level of Ubc9. Chi-square test, Wilcoxon test, and one-way ANOVA were applied to analyze the relationship between Ubc9 expression, clinicopathologic features, and clinical response to neoadjuvant chemotherapy. The significance of variables for survival was analyzed by the Cox proportional hazards model in a multivariate analysis. Kaplan-Meier survival curves were plotted and log-rank test was performed. The proportion of Ubc9-positive cells was higher in invasive ductal carcinoma than in normal breast tissues [(48.48 ± 17.94)% vs. (5.82 ± 2.80)%, P < 0.001]. High Ubc9 expression was associated with poor differentiation (Χ² = 6.538, P = 0.038), larger tumor size (Χ² = 4.701, P = 0.030), advanced clinical stage (Χ² = 4.651, P = 0.031), lymph node metastasis (Χ² = 9.913, P = 0.010), basal-like phenotype (Χ² = 8.660, P = 0.034), and poor clinical response to neoadjuvant chemotherapy (Χ² = 11.09, P = 0.001). The expected 6-year cumulative disease-free survival rate was 87.32% in patients with low Ubc9 expression compared to 68.78% in those with high Ubc9 expression (Χ² = 4.289, P = 0.038). These data indicate that high Ubc9 expression correlates with poor response to chemotherapy and poor clinical prognosis.
Adult
;
Antineoplastic Combined Chemotherapy Protocols
;
therapeutic use
;
Breast Neoplasms
;
drug therapy
;
enzymology
;
pathology
;
surgery
;
Carcinoma, Ductal, Breast
;
drug therapy
;
enzymology
;
pathology
;
surgery
;
Cyclophosphamide
;
therapeutic use
;
Disease Progression
;
Disease-Free Survival
;
Drug Resistance, Neoplasm
;
Epirubicin
;
therapeutic use
;
Female
;
Fluorouracil
;
therapeutic use
;
Humans
;
Immunohistochemistry
;
Kaplan-Meier Estimate
;
Lymphatic Metastasis
;
Mastectomy
;
methods
;
Middle Aged
;
Neoadjuvant Therapy
;
Neoplasm Staging
;
Proportional Hazards Models
;
Remission Induction
;
Tumor Burden
;
Ubiquitin-Conjugating Enzymes
;
metabolism
;
Up-Regulation
4.Effects of D-002, a mixture of high molecular weight beeswax alcohols, on patients with nonalcoholic fatty liver disease.
Jose ILLNAIT ; Ivan RODRIGUEZ ; Sarahi MENDOZA ; Yolanda FERNANDEZ ; Rosa MAS ; Mirtha MIRANDA ; Jesus PINERA ; Julio Cesar FERNANDEZ ; Meilis MESA ; Lilia FERNANDEZ ; Daisy CARBAJAL ; Rafael GAMEZ
The Korean Journal of Internal Medicine 2013;28(4):439-448
BACKGROUND/AIMS: Nonalcoholic fatty liver disease (NAFLD) is intimately related to insulin resistance and ranges from a benign course to liver fibrosis and cirrhosis. NAFLD management mainly involves dietary modification and weight loss. Although no fully successful pharmacological intervention is available, alternative therapies to treat NAFLD have shown promising results. Experimental studies have shown that D-002, a mixture of beeswax alcohols with antioxidant effects, is hepatoprotective. The aim of this study was to investigate the efficacy and safety of D-002 in patients with NALFD. METHODS: Fifty patients with NAFLD were randomized to receive a placebo or D-002 (100 mg/day) for 24 weeks. The primary endpoint was a significant ultrasonography-detected reduction of liver fat infiltration versus a placebo. Secondary endpoints were decreases in the homeostatic model assessment (HOMA) index, insulin levels, serum liver enzymes, increases in plasma total antioxidant status (TAS) and improved clinical symptoms versus the placebo recipients. RESULTS: At randomization, all indicators were comparable in both groups. At study completion, seven (28.0%) D-002-patients, but none of the placebo recipients, exhibited a normal liver echo pattern on ultrasonography (p < 0.01). Also, D-002 significantly reduced (p < 0.01 vs. baseline and placebo) the HOMA index and insulin levels and increased the TAS, but did not affect other parameters. The proportion of D-002-patients (12/25, 48.0%) showing symptom improvement was higher (p < 0.001) than that of the placebo group (1/25, 4.0%). The treatment was safe and well tolerated. Three patients in each group withdrew from the study. CONCLUSIONS: D-002 (100 mg/day) improved ultrasonographic findings, indicators of insulin resistance, plasma TAS and clinical evolution on NAFLD patients. Further studies, however, are needed to confirm these results.
Adult
;
Aged
;
Antioxidants/adverse effects/isolation & purification/*therapeutic use
;
Biological Markers/blood
;
Blood Glucose/metabolism
;
Cuba
;
Double-Blind Method
;
Enzymes/blood
;
Fatty Alcohols/adverse effects/isolation & purification/*therapeutic use
;
Fatty Liver/blood/*drug therapy/ultrasonography
;
Female
;
Humans
;
Insulin/blood
;
Lipids/blood
;
Liver/*drug effects/enzymology/ultrasonography
;
Male
;
Middle Aged
;
Prospective Studies
;
Time Factors
;
Treatment Outcome
;
Waxes/*chemistry
5.Effect of Biophytum sensitivum on streptozotocin and nicotinamide-induced diabetic rats.
Prabu K ANANDA ; C T KUMARAPPAN ; Christudas SUNIL ; V K KALAICHELVAN
Asian Pacific Journal of Tropical Biomedicine 2012;2(1):31-35
OBJECTIVETo investigate the effect of aqueous solution of Biophytum sensitivum leaf extract (BSEt) on normal and streptozotocin (STZ)-nicotinamide-induced diabetic rats.
METHODSDiabetes was induced in adult male Wistar rats by the administration of STZ-nicotinamide (40, 110 mg/kg b.w., respectively) intraperitoneally. BSEt (200 mg/kg) was administered to diabetic rats for 28 days. The effect of extract on blood glucose, plasma insulin, total haemoglobin, glycosylated haemoglobin, liver glycogen and carbohydrate metabolism regulating enzymes of liver was studied in diabetic rats.
RESULTSBSEt significantly reduced the blood glucose and glycosylated haemoglobin levels and significantly increased the total haemoglobin, plasma insulin and liver glycogen levels in diabetic rats. It also increased the hexokinase activity and decreased glucose-6-phosphatase, fructose-1, 6-bisphosphatase activities in diabetic rats.
CONCLUSIONSThe results of our study suggest that BSEt possesses a promising effect on STZ-nicotinamide-induced diabetes.
Animals ; Blood Glucose ; analysis ; Diabetes Mellitus, Experimental ; drug therapy ; Enzymes ; analysis ; Glycated Hemoglobin A ; analysis ; Glycogen ; analysis ; Hypoglycemic Agents ; isolation & purification ; therapeutic use ; Insulin ; blood ; Liver ; chemistry ; enzymology ; Male ; Niacinamide ; toxicity ; Oxalidaceae ; chemistry ; Plant Extracts ; isolation & purification ; therapeutic use ; Plant Leaves ; chemistry ; Plasma ; chemistry ; Rats, Wistar ; Streptozocin ; toxicity ; Treatment Outcome
6.Radiation and concomitant chemotherapy for patients with glioblastoma multiforme.
Salvador VILLÀ ; Carme BALAÑÀ ; Sílvia COMAS
Chinese Journal of Cancer 2014;33(1):25-31
Postoperative external beam radiotherapy was considered the standard adjuvant treatment for patients with glioblastoma multiforme until the advent of using the drug temozolomide (TMZ) in addition to radiotherapy. High-dose volume should be focal, minimizing whole brain irradiation. Modern imaging, using several magnetic resonance sequences, has improved the planning target volume definition. The total dose delivered should be in the range of 60 Gy in fraction sizes of 1.8-2.0 Gy. Currently, TMZ concomitant and adjuvant to radiotherapy has become the standard of care for glioblastoma multiforme patients. Radiotherapy dose-intensification and radiosensitizer approaches have not improved the outcome. In spite of the lack of high quality evidence, stereotactic radiotherapy can be considered for a selected group of patients. For elderly patients, data suggest that the same survival benefit can be achieved with similar morbidity using a shorter course of radiotherapy (hypofractionation). Elderly patients with tumors that exhibit methylation of the O-6-methylguanine-DNA methyltransferase promoter can benefit from TMZ alone.
Aged
;
Antineoplastic Agents, Alkylating
;
therapeutic use
;
Brain Neoplasms
;
genetics
;
metabolism
;
therapy
;
Chemoradiotherapy
;
DNA Methylation
;
DNA Modification Methylases
;
genetics
;
metabolism
;
DNA Repair Enzymes
;
genetics
;
metabolism
;
Dacarbazine
;
analogs & derivatives
;
therapeutic use
;
Dose Fractionation
;
Glioblastoma
;
genetics
;
metabolism
;
therapy
;
Humans
;
Radiosurgery
;
Tumor Suppressor Proteins
;
genetics
;
metabolism